Sure thing, let's get straight to it. We start with 869 and we're going to multiply it by 4, which means adding 869 to itself 4 times.
Step 1: 0 + 869 = 869
Step 2: 869 + 869 = 1738
Step 3: 1738 + 869 = 2607
Step 4: 2607 + 869 = 3476

So, 869*4 = 3476